Lifting machine and battery replacing station

Abstract

The invention discloses a lifting machine and a battery replacing station. The lifting machine comprises a travelling crane platform, the travelling crane platform is provided with an opening, a wheel limiting mechanism sunken downwards is installed in the opening, the wheel limiting mechanism can move front and back in the advancing direction of the battery replacing vehicles so as to position the battery replacing vehicles of different specifications, and the lifting machine further comprises a telescopic structure which is located below the travelling crane platform. The telescopic structure can stretch out and draw back in the displacement direction of the wheel limiting mechanism and is used for sealing a gap formed between the wheel limiting mechanism and the opening due to front-back displacement of the wheel limiting mechanism in the advancing direction of the battery changing vehicle. By arranging the telescopic structure, the gap formed between the outer edge of the wheel limiting mechanism and the inner wall of the opening is sealed, potential safety hazards such as damage to internal parts and personal injury to personnel caused by entering of garbage, sundries and the like are avoided, and the safety of the lifting machine is improved.

Description

Technical Field

[0001] The present invention relates to a lifting machine and a battery swapping station. Background Art

[0002] Electric vehicles have the advantages of zero emissions, low noise, and being very economical in operation and maintenance, and are increasingly favored by users. The energy used by electric vehicles is the electric energy provided by the power battery pack carried by themselves. After the electric energy of the electric vehicle is used up, it needs to be charged. Due to the limitations of existing battery technology and charging technology, it takes a long time to fully charge an electric vehicle, which is not as simple and fast as directly refueling a fuel vehicle. Therefore, in order to reduce the waiting time of users, replacing the battery when the electric energy of the electric vehicle is almost exhausted is an effective means. In order to facilitate the replacement of the battery of the electric vehicle and meet the battery swapping needs of the electric vehicle, it is necessary to build a battery swapping station. With the rapid popularization of electric vehicles, more battery swapping stations need to be built to meet the demand.

[0003] In existing battery swapping stations, in order to perform the disassembly or installation operation on the battery installed at the bottom of the electric vehicle, a lifting machine is generally set to lift the electric vehicle to a certain height to reserve enough space for the battery swapping cart to enter and exit the bottom of the vehicle and perform the disassembly and assembly operations. A wheel limiting mechanism is provided on the lifting machine. The wheel limiting mechanism is installed in the opening of the driving platform. The wheel limiting mechanism is used to carry the wheels of the electric vehicle, and the position of the electric vehicle is adjusted forward and backward by the forward and backward movement of the wheel limiting mechanism in the opening along the traveling direction of the electric vehicle. However, since the wheel limiting mechanism moves forward and backward along the traveling direction, a gap will be formed between the outer edge of the wheel limiting mechanism and the inner wall of the opening, resulting in a safety hazard. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect in the prior art that since the wheel limiting mechanism moves forward and backward along the traveling direction, a gap will be formed between the outer edge of the wheel limiting mechanism and the inner wall of the opening, resulting in a safety hazard, and to provide a lifting machine and a battery swapping station.

[0005] The present invention solves the above technical problem through the following technical solutions:

[0006] A lifting machine includes a driving platform. The driving platform has an opening. A downwardly concave wheel limiting mechanism is installed in the opening. The wheel limiting mechanism can move forward and backward along the traveling direction of the battery swapping vehicle to position battery swapping vehicles of different specifications.

[0007] The lifting machine further includes a telescopic structure. The telescopic structure is located below the driving platform and can be telescoped along the displacement direction of the wheel limiting mechanism. The telescopic structure is used to close the gap formed between the opening and the wheel limiting mechanism due to the forward and backward displacement of the wheel limiting mechanism along the traveling direction of the battery swapping vehicle.

[0008] In this technical solution, by providing a telescopic structure, the gap formed between the outer edge of the wheel limiting mechanism and the inner wall of the opening is closed to avoid potential safety hazards, such as garbage and sundries entering and causing damage to internal components and personal injuries to personnel, etc., thereby improving the safety of the lift.

[0009] Preferably, the telescopic structure includes a first telescopic part and a second telescopic part that are stacked in the height direction of the lift and are movably connected to each other. The first telescopic part is slidably disposed on the lower surface of the traveling platform and is clamped between the traveling platform and the second telescopic part in the height direction. The second telescopic part is fixedly connected to the wheel limiting mechanism.

[0010] The movement of the second telescopic part away from the first telescopic part drives the first telescopic part to move away from the initial position to a closed position where the gap is closed, and the first telescopic part can return to the initial position under the action of a restoring force; along the telescopic direction of the telescopic structure, at least part of the first telescopic part and the second telescopic part always overlap in the height direction.

[0011] In this technical solution, through the above arrangement, a specific structural form of the telescopic structure is provided. By the mutual cooperation of the first telescopic part and the second telescopic part, the gap formed by the front and rear displacements along the traveling direction of the battery swapping vehicle between the outer edge of the wheel limiting mechanism and the inner wall of the opening is always kept closed, and the structure is simple and compact.

[0012] Preferably, a fixing part is provided on the lower surface of the first telescopic part, and the fixing part extends downward in the height direction.

[0013] A connecting part is provided on the second telescopic part corresponding to the position of the fixing part of the first telescopic part, and the connecting part can abut against the fixing part.

[0014] In this technical solution, the movable connection between the two is realized by setting the cooperation mode of the fixing part of the first telescopic part and the connecting part of the second telescopic part. That is to say, when the second telescopic part moves away from the first telescopic part, the connecting part can abut against the fixing part to drive the first telescopic part to leave the initial position; when the second telescopic part moves closer to the first telescopic part, the connecting part disengages from the fixing part, and the first telescopic part returns to the initial position under the action of a restoring force.

[0015] Preferably, the telescopic direction of the telescopic structure is the same as the width direction of the telescopic structure.

[0016] The first telescopic part includes a first main body and an extension part. The extension part is arranged at the outer edge of the first main body close to the second telescopic part along the length direction of the telescopic structure, and the extension part extends in the direction close to the second telescopic part along the telescopic direction. The fixing part is arranged on the lower surface of the extension part;

[0017] The second telescopic part includes a second main body and the connecting part. The connecting part is connected to the outer edge of the second main body along the length direction of the telescopic structure and extends in the direction away from the second main body along the length direction of the telescopic structure. The projection of the connecting part and the fixing part along the telescopic direction at least partially overlaps;

[0018] The size of the first main body of the first telescopic part along the length direction of the telescopic structure is larger than the size of the second main body of the second telescopic part along the length direction of the telescopic structure, and the size of the second main body of the second telescopic part along the length direction of the telescopic structure is greater than or equal to the size of the opening along the length direction of the telescopic structure.

[0019] In this technical solution, by setting the specific structures of the first telescopic part and the second telescopic part, the matching dimensions of the two along the length direction of the telescopic structure are made compact. And by setting that the size of the first main body of the first telescopic part along the length direction of the telescopic structure is larger than the size of the second main body of the second telescopic part along the length direction of the telescopic structure, and the size of the second main body of the second telescopic part along the length direction of the telescopic structure is greater than or equal to the size of the opening along the length direction of the telescopic structure. That is to say, the sizes of the first telescopic part and the second telescopic part along the length direction of the telescopic structure can complete the shielding of the size of the opening along the length direction of the telescopic structure, so as to realize the closure of the part provided with the first telescopic part and the second telescopic part along the length direction of the telescopic structure.

[0020] Preferably, both the number of the fixing parts and the number of the extension parts are two; the two extension parts are respectively arranged close to the opposite outer edges of the first main body along the direction perpendicular to the telescopic direction, and the two fixing parts are respectively arranged on the lower surfaces of the two extension parts.

[0021] In this technical solution, through the above setting, the movement of the second telescopic part can drive the movement of the first telescopic part more smoothly.

[0022] Preferably, the telescopic structure further includes two elastic reset parts, and the two elastic reset parts are respectively connected between the two fixing parts and the driving platform; wherein, the two elastic reset parts always apply a force to the first telescopic part to make the first telescopic part return to the initial position.

[0023] In this technical solution, an elastic member is provided to apply a force to the first telescopic part to make the first telescopic part return to its initial position, so that the first telescopic part can return to its initial position after being separated from the force applied by the second telescopic part, so as to always maintain a closed gap; by providing an elastic reset member connected to the fixed part of the first telescopic part, the overall structure is made more compact; by providing two elastic reset members, and the two elastic reset members are respectively connected between the two fixed parts and the driving platform, the restoring force applied by the elastic reset members to the first telescopic part can be more evenly distributed, so that the movement of the first telescopic part when returning to its initial position is more stable.

[0024] Preferably, a first bracket extending along the length direction of the telescopic structure is provided on the fixed part, a second bracket protrudes from the lower surface of the driving platform, the second bracket extends downward along the height direction, and both ends of the elastic reset member are respectively connected to the first bracket and the second bracket.

[0025] In this technical solution, the first bracket and the second bracket are provided to fix the elastic reset member, and by setting the specific positions of the first bracket and the second bracket, the overall structure of the telescopic structure is made more compact, reducing the overall occupied space.

[0026] Preferably, a convex platform is provided on the lower surface of the driving platform, the convex platform is arranged on both sides of the first telescopic part, and a chute recessed inward is provided on one side of each convex platform close to the first telescopic part, and opposite sides of the first telescopic part along the length direction of the telescopic structure are respectively slidably arranged in the two chutes, and the chutes are L-shaped chutes; and / or,

[0027] The lift further includes a limiting member, and the limiting member is arranged at the edge of the lower surface of the driving platform, and the limiting member is used to limit the first telescopic part to be in the initial position.

[0028] In this technical solution, by providing the chute, a specific setting method for the first telescopic part to slide on the lower surface of the driving platform is provided, and by setting the opposite sides of the first telescopic part along the direction perpendicular to the telescopic direction to be respectively slidably arranged in the chute, the sliding of the first telescopic part is smoother. By arranging the chute in a recessed form on the convex platforms on both sides of the first telescopic part on the lower surface of the driving platform, the overall structure is made more compact. By providing the limiting member at the edge of the lower surface of the driving platform, the first telescopic part can be limited to prevent the first telescopic part from reversely departing from the initial position under the action of the restoring force.

[0029] Preferably, the number of the telescopic structures is two, and the two telescopic structures are respectively arranged at the front and rear ends of the wheel limiting mechanism along the telescopic direction.

[0030] In this technical solution, by providing two telescopic structures at the front and rear ends of the wheel limiting mechanism along the telescopic direction, the gaps formed between the outer edge of the front end of the wheel limiting mechanism and the inner wall of the opening, and between the outer edge of the rear end of the wheel limiting mechanism and the inner wall of the opening are sealed, thereby better improving the safety of the lift.

[0031] Preferably, the lift further includes a driving mechanism for driving the wheel limiting mechanism to move back and forth along the advancing direction of the battery swapping vehicle.

[0032] The lift further includes a support frame disposed below the wheel limiting mechanism. A slide rail and a slider slidably engaged with the slide rail are provided on the support frame, and the wheel limiting mechanism is fixed to the slider.

[0033] In this technical solution, by providing a driving mechanism, the wheel limiting mechanism is enabled to move back and forth along the advancing direction of the battery swapping vehicle, so that the moving base can move back and forth along the advancing direction of the battery swapping vehicle, thereby adjusting to an accurate battery swapping position for battery swapping vehicles with different wheelbases. By providing a slide rail and a slider, the wheel limiting mechanism is enabled to move back and forth along the advancing direction of the battery swapping vehicle.

[0034] A battery swapping station includes the lift as described above.

[0035] The positive and progressive effects of the present invention are as follows:

[0036] In the present invention, by providing a telescopic structure in the lift of the battery swapping station, the gap formed between the outer edge of the wheel limiting mechanism and the inner wall of the opening is sealed, avoiding potential safety hazards, such as garbage and sundries entering and causing damage to internal components and personal injuries to personnel, etc., and improving the safety of the lift and the battery swapping platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a perspective structural view of a lift according to a preferred embodiment of the present invention.

[0038] Figure 2 is a partial perspective structural view of a lift according to a preferred embodiment of the present invention.

[0039] Figure 3 is Figure 2 an enlarged view of part A in

[0040] Figure 4 is a partial perspective structural view of the lift according to a preferred embodiment of the present invention from another angle.

[0041] Figure 5 is a partial perspective structural view of the lift according to a preferred embodiment of the present invention from yet another angle.

[0042] Figure 6 is Figure 5 An enlarged view of part B in

[0043] Figure 7 This is a partial perspective structural view of the telescopic structure according to a preferred embodiment of the present invention.

[0044] Figure 8 This is a partial perspective structural view of the telescopic structure according to a preferred embodiment of the present invention from another angle.

[0045] Description of reference numerals

[0046] Lift 1

[0047] Traveling platform 10

[0048] Opening 11

[0049] Wheel limiting mechanism 20

[0050] Mounting seat 21

[0051] Roller 22

[0052] Telescopic structure 30

[0053] First telescopic part 31

[0054] Fixed part 311

[0055] First main body 312

[0056] Extension part 313

[0057] Second telescopic part 32

[0058] Connection part 321

[0059] Second main body 322

[0060] Elastic resetting part 33

[0061] First bracket 34

[0062] Second bracket 35

[0063] Boss 41

[0064] Chute 411

[0065] Limiting part 42

[0066] Drive mechanism 50

[0067] Support frame 60

[0068] Slide rail 71

[0069] Slider 72

[0070] The telescoping direction P of the telescopic structure

[0071] The length direction L of the telescopic structure

[0072] The height direction H of the lift Specific implementation manners

[0073] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments accordingly.

[0074] As Figures 1-8 shown, this embodiment discloses a lift 1, which includes a driving platform 10. The driving platform 10 has an opening 11, and a downwardly concave wheel limiting mechanism 20 is installed in the opening 11. The wheel limiting mechanism 20 can be displaced forward and backward along the traveling direction of the battery swapping vehicle to position battery swapping vehicles of different specifications.

[0075] The lift 1 further includes a telescopic structure 30. The telescopic structure 30 is located below the driving platform 10 and can be telescoped along the displacement direction of the wheel limiting mechanism 20. The telescopic structure 30 is used to close the gap formed between it and the opening 11 due to the forward and backward displacement of the wheel limiting mechanism 20 along the traveling direction of the battery swapping vehicle.

[0076] In this way, by providing the telescopic structure 30, the gap formed between the outer edge of the wheel limiting mechanism 20 and the inner wall of the opening 11 is closed, avoiding potential safety hazards, such as garbage and sundries entering and causing damage to internal components and personal injuries to personnel, etc., and improving the safety of the lift 1.

[0077] It should be noted that since the telescopic structure 30 can be telescoped along the displacement direction of the wheel limiting mechanism 20, and the wheel limiting mechanism 20 can be displaced forward and backward along the traveling direction of the battery swapping vehicle; therefore, the telescoping direction P of the telescopic structure 30 is the same as the displacement direction of the wheel limiting mechanism 20; and the telescoping direction P of the telescopic structure 30 is the same as the width direction of the telescopic structure 30, that is, the telescoping direction P of the telescopic structure 30 is perpendicular to the length direction L of the telescopic structure 30. The width direction of the telescopic structure 30 is the same as the width direction of the lift 1.

[0078] In addition, in Figure 2 and Figure 3 the driving platform 10 of the lift 1 is removed to better show the positional relationship between the telescopic structure 30 and the wheel limiting mechanism 20.

[0079] In this embodiment, the telescopic structure 30 includes a first telescopic part 31 and a second telescopic part 32 which are stacked in the height direction H of the lift 1 and are movably connected to each other. The first telescopic part 31 is slidably disposed on the lower surface of the driving platform 10 and is clamped between the driving platform 10 and the second telescopic part 32 in the height direction H. The second telescopic part 32 is fixedly connected to the wheel limiting mechanism 20.

[0080] The movement of the second telescopic part 32 in the direction away from the first telescopic part 31 drives the first telescopic part 31 to move away from the initial position to the closed position of the closed gap, and the first telescopic part 31 can return to the initial position under the action of the restoring force; along the telescopic direction P of the telescopic structure 30, the first telescopic part 31 and the second telescopic part 32 always ensure that at least part of them coincide in the height direction H.

[0081] In this way, through the above settings, a specific structural form of the telescopic structure 30 is provided. By the mutual cooperation of the first telescopic part 31 and the second telescopic part 32, the gap formed by the front and rear displacements of the outer edge of the closed wheel limiting mechanism 20 and the inner wall of the opening 11 along the traveling direction of the battery swapping vehicle is always maintained. The structure is simple and compact.

[0082] The lower surface of the first telescopic part 31 is provided with a fixing part 311 which extends downward in the height direction H; the second telescopic part 32 is provided with a connecting part 321 corresponding to the position of the fixing part 311 of the first telescopic part 31, and the connecting part 321 can abut against the fixing part 311. In this way, the movable connection between the two is realized by setting the cooperation mode of the fixing part 311 of the first telescopic part 31 and the connecting part 321 of the second telescopic part 32. That is to say, when the second telescopic part 32 moves away from the first telescopic part 31, the connecting part 321 can abut against the fixing part 311 to drive the first telescopic part 31 to move away from the initial position; when the second telescopic part 32 moves closer to the first telescopic part 31, the connecting part 321 disengages from the fixing part 311, and the first telescopic part 31 returns to the initial position under the action of the restoring force.

[0083] Specifically, the first telescopic part 31 includes a first main body 312 and an extension part 313. The extension part 313 is arranged at the outer edge of the first main body 312 on the side close to the second telescopic part 32 along the length direction L of the telescopic structure 30, and the extension part 313 extends in the direction of approaching the second telescopic part 32 along the telescopic direction P. The fixing part 311 is arranged on the lower surface of the extension part 313. The second telescopic part 32 includes a second main body 322 and a connecting part 321. The connecting part 321 is connected to the outer edge of the second main body 322 along the length direction L of the telescopic structure 30, and extends in the direction away from the second main body 322 along the length direction L of the telescopic structure 30. The projection of the connecting part 321 and the fixing part 311 along the telescopic direction P at least partially overlaps. In this way, by setting the specific structures of the first telescopic part 31 and the second telescopic part 32, the matching dimensions of the two along the length direction L of the telescopic structure 30 are made compact.

[0084] The dimension of the first main body 312 of the first telescopic part 31 along the length direction L of the telescopic structure 30 is larger than the dimension of the second main body 322 of the second telescopic part 32 along the length direction L of the telescopic structure 30, and the dimension of the second main body 322 of the second telescopic part 32 along the length direction L of the telescopic structure 30 is greater than or equal to the dimension of the opening 11 along the length direction L of the telescopic structure 30. In this way, by setting the dimension of the first main body 312 of the first telescopic part 31 along the length direction L of the telescopic structure 30 to be larger than the dimension of the second main body 322 of the second telescopic part 32 along the length direction L of the telescopic structure 30, and the dimension of the second main body 322 of the second telescopic part 32 along the length direction L of the telescopic structure 30 to be greater than or equal to the dimension of the opening 11 along the length direction L of the telescopic structure 30, that is to say, the dimensions of the first telescopic part 31 and the second telescopic part 32 along the length direction L of the telescopic structure 30 can complete the shielding of the dimension of the opening 11 along the length direction L of the telescopic structure 30, so as to realize the closing of the part provided with the first telescopic part 31 and the second telescopic part 32 along the length direction L of the telescopic structure 30.

[0085] Preferably, the number of the fixing parts 311 and the number of the extension parts 313 are both two; the two extension parts 313 are respectively arranged close to the outer edges of the first main body 312 on the opposite sides perpendicular to the telescopic direction P, that is, the two extension parts 313 are respectively arranged close to the outer edges of the first main body 312 on the opposite sides along the length direction L of the telescopic structure 30; the two fixing parts 311 are respectively arranged on the lower surfaces of the two extension parts 313. In this way, through the above settings, the movement of the second telescopic part 32 can drive the movement of the first telescopic part 31 more smoothly.

[0086] In this embodiment, the telescopic structure 30 further includes two elastic reset members 33, which are respectively connected between the two fixing portions 311 and the driving platform 10. The two elastic reset members 33 always apply a force to the first telescopic portion 31 to return it to the initial position. In this way, by providing an elastic member to apply a force to the first telescopic portion 31 to return it to the initial position, the first telescopic portion 31 can return to the initial position after being separated from the force applied by the second telescopic portion 32, so as to always maintain the closed gap. By connecting the elastic reset member 33 to the fixing portion 311 of the first telescopic portion 31, the overall structure is made more compact. By providing two elastic reset members 33, and the two elastic reset members 33 are respectively connected between the two fixing portions 311 and the driving platform 10, the restoring force applied by the elastic reset members 33 to the first telescopic portion 31 can be more evenly distributed, so that the movement of the first telescopic portion 31 when returning to the initial position is smoother. Specifically, the elastic reset member 33 is a spring.

[0087] Further, a first bracket 34 extending along the length direction L of the telescopic structure 30 is provided on the fixing portion 311, and a second bracket 35 protrudes from the lower surface of the driving platform 10 and extends downward along the height direction H. The two ends of the elastic reset member 33 are respectively connected to the first bracket 34 and the second bracket 35. In this way, by providing the first bracket 34 and the second bracket 35 to fix the elastic reset member 33, and by setting the specific positions of the first bracket 34 and the second bracket 35, the overall structure of the telescopic structure 30 is made more compact and the overall occupied space is reduced. After the two ends of the elastic reset member 33 are respectively connected to the first bracket 34 and the second bracket 35, the setting direction of the elastic reset member 33 is the same as the telescopic direction P of the telescopic structure 30, so that the elastic restoring force applied by the elastic reset member 33 to the first telescopic portion 31 can be the most efficient.

[0088] In this embodiment, a convex platform 41 is provided on the lower surface of the driving platform 10. The convex platform 41 is provided on both sides of the first telescopic portion 31, and a chute 411 recessed inward is provided on one side of each convex platform 41 close to the first telescopic portion 31. The opposite sides of the first telescopic portion 31 along the length direction L of the telescopic structure 30 are respectively slidably disposed in the two chutes 411. In this way, by providing the chute 411, a specific setting method for the first telescopic portion 31 to slide on the lower surface of the driving platform 10 is provided, and by setting the opposite sides of the first telescopic portion 31 perpendicular to the telescopic direction P to be respectively slidably disposed in the chute 411, the sliding of the first telescopic portion 31 is smoother. Further, by providing the chute 411 in a recessed form on the convex platforms 41 on both sides of the first telescopic portion 31 on the lower surface of the driving platform 10, the overall structure is made more compact.

[0089] Specifically, the sliding groove 411 is an L-shaped sliding groove 411 to effectively save the dimension in the length direction L of the telescopic structure 30 through a compact structure.

[0090] The lift 1 further includes a limiting member 42, which is arranged at the edge of the lower surface of the driving platform 10. The limiting member 42 is used to limit the first telescopic portion 31 to be in the initial position. In this way, by arranging the limiting member 42 at the edge of the lower surface of the driving platform 10, the first telescopic portion 31 can be limited to prevent the first telescopic portion 31 from reversely disengaging from the initial position under the action of the restoring force. The number of the limiting members 42 is multiple, and the multiple limiting members 42 are arranged at equal intervals along the length direction L of the telescopic structure 30 to provide more blocking force application points, thereby improving the limiting effect on the first telescopic portion 31.

[0091] Preferably, the number of the telescopic structures 30 is two, and the two telescopic structures 30 are respectively arranged at the front and rear ends of the wheel limiting mechanism 20 along the telescopic direction P. In this way, by arranging two telescopic structures 30 at the front and rear ends of the wheel limiting mechanism 20 along the telescopic direction P respectively, the gaps formed between the outer edge of the front end of the wheel limiting mechanism 20 and the inner wall of the opening 11, and between the outer edge of the rear end of the wheel limiting mechanism 20 and the inner wall of the opening 11 can be closed, and the safety of the lift 1 can be better improved.

[0092] Preferably, the lift 1 further includes a driving mechanism 50, and the driving mechanism 50 is used to drive the wheel limiting mechanism 20 to move back and forth along the advancing direction of the battery swapping vehicle;

[0093] The lift 1 further includes a support frame 60 arranged below the wheel limiting mechanism 20. A slide rail 71 and a slider 72 slidably matched with the slide rail 71 are arranged on the support frame 60, and the wheel limiting mechanism 20 is fixed on the slider 72. In this way, by arranging the driving mechanism 50, the wheel limiting mechanism 20 can be moved back and forth along the advancing direction of the battery swapping vehicle, so that the moving base can be moved back and forth along the advancing direction of the battery swapping vehicle, thereby adjusting to the accurate battery swapping position for battery swapping vehicles with different wheelbases. By arranging the slide rail 71 and the slider 72, the wheel limiting mechanism 20 can be moved back and forth along the advancing direction of the battery swapping vehicle.

[0094] Specifically, the wheel limiting mechanism 20 includes a mounting seat 21, and two rows of rollers 22 are arranged in a V shape on the top surface of the mounting seat 21 to form a depression. The mounting seat 21 of the wheel limiting mechanism 20 is fixed on the slider 72.

[0095] This embodiment also provides a battery swapping station, which includes the lift 1 as described above. In this embodiment, a telescopic structure 30 is provided in the lift 1 of the battery swapping station to seal the gap formed between the outer edge of the wheel limiting mechanism 20 and the inner wall of the opening 11, so as to avoid potential safety hazards, such as damage to internal components caused by entry of garbage and sundries, and personal injuries to personnel, etc., and improve the safety of the lift 1 and the battery swapping platform.

[0096] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A lifting machine, which includes a driving platform. The driving platform has an opening, and a downwardly concave wheel limiting mechanism is installed in the opening. The wheel limiting mechanism can be displaced back and forth along the traveling direction of the battery swapping vehicle to position battery swapping vehicles of different specifications. It is characterized in that, the lifting machine further includes a telescopic structure. The telescopic structure is located below the driving platform and can be telescoped along the displacement direction of the wheel limiting mechanism. The telescopic structure is used to close the gap formed between the opening and the wheel limiting mechanism due to the forward and backward displacement of the wheel limiting mechanism along the traveling direction of the battery swapping vehicle.

2. The lift according to claim 1, characterized in that, The telescopic structure includes a first telescopic part and a second telescopic part that are stacked along the height direction of the lifting machine and are movably connected to each other. The first telescopic part is slidably disposed on the lower surface of the driving platform and is clamped between the driving platform and the second telescopic part along the height direction. The second telescopic part is fixedly connected to the wheel limiting mechanism. The movement of the second telescopic part in the direction away from the first telescopic part drives the first telescopic part to move away from the initial position to the closed position for closing the gap, and the first telescopic part can return to the initial position under the action of a restoring force. Along the telescopic direction of the telescopic structure, the first telescopic part and the second telescopic part always ensure that at least part of them overlap along the height direction; and / or, the number of the telescopic structures is two, and the two telescopic structures are respectively arranged at the front and rear ends of the wheel limiting mechanism along the telescopic direction.

3. The lift according to claim 2, characterized in that, A fixing part is provided on the lower surface of the first telescopic part, and the fixing part extends downward along the height direction; A connecting part is provided at the position of the second telescopic part corresponding to the fixing part of the first telescopic part, and the connecting part can abut against the fixing part.

4. The lifting machine according to claim 3, characterized in that, the telescopic direction of the telescopic structure is the same as the width direction of the telescopic structure; The first telescopic part includes a first main body and an extension part. The extension part is arranged at the outer edge of the first main body close to the second telescopic part along the length direction of the telescopic structure, and the extension part extends in the direction close to the second telescopic part along the telescopic direction. The fixing part is arranged on the lower surface of the extension part; The second telescopic part includes a second main body and the connecting part. The connecting part is connected to the outer edge of the second main body along the length direction of the telescopic structure and extends in the direction away from the second main body along the length direction of the telescopic structure. The projection of the connecting part and the fixing part along the telescopic direction at least partially overlaps; The size of the first main body of the first telescopic part along the length direction of the telescopic structure is larger than the size of the second main body of the second telescopic part along the length direction of the telescopic structure, and the size of the second main body of the second telescopic part along the length direction of the telescopic structure is greater than or equal to the size of the opening along the length direction of the telescopic structure.

5. The lift according to claim 4, characterized in that, The number of the fixing parts and the number of the extending parts are both two; the two extending parts are respectively arranged close to the opposite outer edges of the first main body along the two sides perpendicular to the telescopic direction, and the two fixing parts are respectively arranged on the lower surfaces of the two extending parts.

6. The lift according to claim 5, characterized in that, The telescopic structure further includes elastic resetting members, the number of the elastic resetting members is two, and the two elastic resetting members are respectively connected between the two fixing parts and the driving platform; wherein, the two elastic resetting members always apply a force to the first telescopic part to make the first telescopic part return to the initial position.

7. The lift according to claim 6, characterized in that, A first bracket extending along the length direction of the telescopic structure is arranged on the fixing part, a second bracket protrudes from the lower surface of the driving platform, the second bracket extends downward along the height direction, and two ends of the elastic resetting member are respectively connected to the first bracket and the second bracket.

8. The lift according to claim 2, wherein A boss is arranged on the lower surface of the driving platform, the boss is arranged on both sides of the first telescopic part, and a chute recessed inward is arranged on one side of each boss close to the first telescopic part, and the opposite sides of the first telescopic part along the length direction of the telescopic structure are respectively slidably arranged in the two chutes, and the chutes are L-shaped chutes; and / or, The lift further includes a limiting member, the limiting member is arranged at the edge of the lower surface of the driving platform, and the limiting member is used for limiting the first telescopic part at the initial position.

9. The lift according to any one of claims 1-8, characterized in that, The lift further includes a driving mechanism, and the driving mechanism is used for driving the wheel limiting mechanism to move back and forth along the traveling direction of the battery swapping vehicle. The lift further includes a support frame arranged below the wheel limiting mechanism, a slide rail and a slider slidably matched with the slide rail are arranged on the support frame, and the wheel limiting mechanism is fixed on the slider.

10. A battery swapping station, characterized in that, The battery swapping station includes a lift as described in any one of claims 1-9.

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